Conference paper
Performance evaluation of anomaly detection in imbalanced system log data
2020 Fourth World Conference on Smart Trends in Systems, Security and Sustainability (WorldS4)
2020 Fourth World Conference on Smart Trends in Systems, Security and Sustainability (WorldS4) (London, UK, 27/07/2020–28/07/2020)
2020
Abstract
An administrator needs to examine operating system log files for any anomalous events. In real-life log data, the number of anomalies is often smaller than the normal ones. This imbalance situation affects the performance of the anomaly detectors because a large number of normal events feed the training of the classifier. In this paper, we evaluate popular machine learning methods and consider this problem of data imbalance. We compare data oversampling and undersampling approaches before inputting them to the classifier. Experimental results demonstrate that by taking data imbalance into consideration, there is an improvement in the method performance in terms of precision and recall scores.
Details
- Title
- Performance evaluation of anomaly detection in imbalanced system log data
- Authors/Creators
- H. Studiawan (Author/Creator) - Sepuluh Nopember Institute of TechnologyF. Sohel (Author/Creator) - Murdoch University
- Publication Details
- 2020 Fourth World Conference on Smart Trends in Systems, Security and Sustainability (WorldS4)
- Conference
- 2020 Fourth World Conference on Smart Trends in Systems, Security and Sustainability (WorldS4) (London, UK, 27/07/2020–28/07/2020)
- Identifiers
- 991005545212107891
- Murdoch Affiliation
- Information Technology, Mathematics and Statistics
- Language
- English
- Resource Type
- Conference paper
Metrics
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